Microscope



FIG. 1 is a right, rear perspective view of a microscope showing my new design, the undisclosed portions are not part of the claimed design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a microscope, as shown and described. 